IMHO, Kamala Harris has a virtual lock on the VP nomination. She is blowing smoke if she thinks she will get the nomination. I think she also knows that but but she also knows she has to go through the motions.
She is the only candidate so far who meets the full Lib Demographic Spec for the job: Not White, Not male. Im betting it will be Biden-Harris in 2020. Im also betting they will lose.
Harris is essentially 0bama with better plumbing.
Plus, she can read the mortality tables for someone of Biden's age.